Chain hook



FIG. 1 is a perspective view of a chain hook showing my new design;

FIG. 2 is a left side view of the chain hook of FIG. 1;

FIG. 3 is a rear view of the chain hook of FIG. 1;

FIG. 4 is a bottom view of the chain hook of FIG. 1;

FIG. 5 is a top view of the chain hook of FIG. 1;

FIG. 6 is a right side view of the chain hook of FIG. 1;

FIG. 7 is a front view of the chain hook of FIG. 1; and,

FIG. 8 is another perspective view of the chain hook of FIG. 1 showing the chain hook as used with a mating hook and chain portions.

The broken lines in the figures illustrate environmental structure and form no part of the claimed design. 

CLAIM The ornamental design of a chain hook, as shown and described. 